中华医学超声杂志

应用化学 ›› 1989, Vol. 0 ›› Issue (3): 6-9.

• 研究论文 • 上一篇    下一篇

蓖麻油聚氨酯/乙烯类聚合物交联共聚物的动态力学性能

刘文忠, 刘景江, 杨惠明, 韩孝族, 侯春荣   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1988-05-04 修回日期:1988-10-12 出版日期:1989-06-10 发布日期:1989-06-10
  • 基金资助:
    国家自然科学基金

DYNAMIC MECHANICAL PROPERTIES OF THE CROSSLINKED COPOLYMER BASED ON CASTOR OIL POLYURETHANE/VINYL POLYMERS

Liu Wenzhong, Liu JingJiang, Yang Huiming, Han Xiaozu, Hou Chunrong   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1988-05-04 Revised:1988-10-12 Published:1989-06-10 Online:1989-06-10

PDF

452

被引次数

2

摘要： 本文研究了蓖麻油聚氨酯(COPU)/聚甲基丙烯酸丁酯(PBMA)交联共聚物(简称ABCP)的动态力学性能,并将其与COPU/PBMA,IPN的动态力学性能作了比较。发现在ABCP中两组份的阻尼峰互相叠加,形成半相容体系,而在IPN中阻尼峰有个宽的平台。透射电镜照片表明,IPN具有更大的相区结构。这些结果证明,化学交联比物理缠结具有更大的强迫互容性。通过对COPU/乙烯类聚合物(VP)交联共聚物相容性的研究,可知COPU/PBMA,COPU/PST和COPU/PMMA交联共聚物,在动态力学性能上是半相容体系,而COPU/PMA和COPU/PBA交联共聚物是互容体系。

关键词: 蓖麻油, 聚氨醋, AB交联聚合物, 相容性

Abstract: The dynamic mechanical properties of the copolymer networks,AB-crosslinked polymers(ABCP), from a castor oil polyurethane(COPU)and poly(butyl methactylate) (PBMA) werequite different from that of IPN which have the similar composition to ABCP.In the case of COPU/PBMA ABCP,the damping peaks of the two components shift inward and over-lap each other,which reveals that the polymer system is partially compatible.However, thedamping peak of COPU/PBMA 1PN is a wide plateau.The electron micrographs show the larger domain sizes in IPN than in ABCP.The iesults indicates that the effect of chemical crosslinking on the compatibility is more notable than the physical entanglement. ABCP's from COPU/PST and COPU/PMMA are partially compatible like that of COPU/PBMA,while COPU/PMA and COPU/PBA aro completely compatible.

Key words: Castor oil, Polyurethane, AB crosslinking polymer, Compatibility

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